An exterior glazing system featuring an expressed mullion transition with specific dimensional callouts for vertical mullion heights. The assembly incorporates a 4-1/2 inch expressed mullion and a 2-1/2 inch high expressed mullion alongside a 9-1/2 inch high mullion configuration. Glass within the glazed curtain walls and storefronts must comply with seismic requirements set forth in ASCE 7, Section 13.5.9.
3" 41/2" EXPRESSED MULLION 2 1_ 2 " H EXPRESSED MULLION 9 1_ 2 " HIGH EXTERIOR GLAZING SYSTEM; REFER TO EXTERIOR ELEVATIONS FOR MORE INFORMATION. GLASS IN GLAZED CURTAIN WALLS AND GLAZED STOREFRONTS SHALL MEET THE SEISMIC REQUIREMENTS OF ASCE 7, SECTION 13.5.9.
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